// Playground - noun: a place where people can play

import UIKit

var str = "Hello, playground"
let str2 = "I am an immutable string"

//str = "hi"
//str2 = "hi"

//str += "hi"
//str2 += "hi"

var str3 = ""
var str4 = String()

str.isEmpty
str4.isEmpty

for c in str
{
    println(c)
}

var ch:Character = "!"

str.append(ch)

var str7 = "!!"
str += str7

countElements(str)

var str8:NSString = str
str8.length

str += " Hello, Andon "

